I thought all manufacturers were trying to duplicate the amounts used in that study with magnesium-defficient athletes. That's why I never paid attention to the doses. I guess results then would depend on how Z and MG defficient you are.

Brian, I was thinking of starting ZMA myself. My question would be about overdosing. If I'm already taking zinc and mag. supps, and also a multi-vit and mineral, should I discontinue those once I start ZMA?